The ceramic shaft is held by two rubber bearings, which remain either on the shaft or on
the bottom of the impeller casing or in the middle of the casing cover when the impeller is
removed.
Clean the impeller casing, impeller and shaft with a suitable cleaning brush, then rinse in
clean water. Limescale can be easily removed by soaking in JBL BioClean A (available at
your specialist pet shop).
Never dip the pump head in water or other liquid to clean it. Use a damp cloth to clean the
surface of the casing.
Place the ceramic shaft and impeller back in the casing. Check that both rubber bearings are
correctly positioned for the ceramic shaft. Place the impeller cover back and, pressing gen-
tly, turn the cover towards "CLOSE" until the stop point.
Note: If the impeller has to be replaced due to wear and tear, the complete set of impeller
with axle and 2 rubber bearings must be replaced. Perfect operation and quiet running can
only be guaranteed when all these parts are replaced together. When the impeller and axle
are removed, a rubber bearing often remains on the base of the impeller casing and this is
difficult to remove. JBL has produced a special tool for this task available at specialist pet
shops under the name "Extraction tool for impeller bearing". A useful cleaning brush for the
impeller casing is also included.
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Re-starting filter
Place the hose connection block with the attached hoses back in position as described in
(2). Then turn the right-hand stopcock lever followed a few seconds later by the left-hand
lever towards "OPEN" until the stop point.
If the water does not begin to run into the filter automatically, start the filter as described in
(5).
Connect the filter to the mains power supply.
What to do if...?
The pump head cannot be correctly fitted
Cause
One or more filter baskets too full or not
positioned correctly on top of one another
Filter on pump head leaks
Cause
Fastening clips not closed or not properly closed
Profile seal washer dirty
Profile seal washer fitted incorrectly, twisted,
damaged or missing.
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Solution
Do not overfill filter baskets, check the baskets are
properly stacked on top of each other
Solution
Close all fastening clips correctly
Clean sealing surfaces and grease with Vaseline
Position seal washer correctly or replace